I'm doin the diy intake mod right now, but I have a couple questions. I don't think I wil dremel offf the inlet path because I want to be able to reverse the process if it doesn't work out. On the last part where they remove the u shaped foam, what's the point of this, and are you supposed to dremel out the fender where that part connects. I don't understand why its just sits up against the inner part of the fender there.